| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to stably and easily maintain internal pressure in a bottle body.SOLUTION: A bottle 10 comprises a bottle body 11 for accommodation of a content, and a cap 12 which is detachably mounted to a mouth 11a of the bottle body 11. The cap 12 includes a cylindrical body cylinder part 13 with a top which is screwed to the outer peripheral surface of the mouth 11a, and a projection cylinder part 15 which projects into the mouth 11a from a top wall part 14 of the body cylinder part 13. The projection cylinder part 15 is blocked by a film member 20 which defines an inner space between the projection cylinder part 15 and the top wall part 14. The cap 12 is provided with a channel part 21 which communicates the inner space 19 with the outside of the bottle 10, and a breaking part 22 which projects into the inner space 19 from an inside part 14a positioned on the inside of the projection cylinder part 15 in the top wall part 14 and which is capable of breaking the film member 20. |
